Finding the Fourth Proportional to 261,842.74, 392,904.87 and 104,072.50
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Solution
The fourth proportional to 261,842.74, 392,904.87 and 104,072.50 is: 156,164.70
Step by Step Solution
- Step 1: Write the proportion equation
261,842.74 : 392,904.87 = 104,072.50 : x - Step 2: Convert to fraction form
261,842.74/392,904.87 = 104,072.50/x - Step 3: Cross multiply
261,842.74x = 392,904.87 × 104,072.50 - Step 4: Simplify right side
261,842.74x = 40,890,592,083.08 - Step 5: Solve for x
x = 40,890,592,083.08/261,842.74 - Step 6: Final answer
x = 156,164.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.